Best Caveman Music Festival! Experience the magic of live music against the breathtaking backdrop of Weston, Colorado, at the Caveman Colorado Music Festival. Held at Monument Lake Resort, this Labor Day weekend event features over 20 artists and bands, camping, and outdoor adventures amidst the stunning Sangre de Cristo Mountains. Address: Events, 4789 CO-12, Weston, CO 81091, United States Phone: (719) 680-0580